Full TGIF Record # 71148
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Kopp, K. L.; Guillard, K.
Author Affiliation:University of Connecticut
Title:Clipping management effects on turfgrass growth, N utilization, and quality responses
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 161.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Clippings; Nitrogen; Nitrogen use; Lawn turf; Cool season turfgrasses; Poa; Lolium; Festuca rubra subsp. rubra; Nitrogen fertilizers; Clipping management; Growth; Clipping return
Abstract/Contents:"The effect of returning grass clippings upon turfgrass growth and quality has not been thoroughly examined. The objective of this research was to determine the effects of returning grass clippings in combination with varying N rates on growth, N utilization and quality of cool-season turfgrass managed as a residential lawn. Two field experiments utilizing a bluegrass-ryegrass-red fescue mixture were arranged as a 2 x 4 factorial in a randomized complete block design with 3 replicates. Treatments included 2 clipping management practices (returned or removed) and 4 N rates (equivalent to 0, 98, 196, and 392 kg N/ha). Returning clippings was found to increase clipping dry matter yields from 30 to 72%, total N uptake from 48 to 60%, N recovery by 62% and N use efficiency from 52 to 71%. Returning grass clippings did not adversely impact turfgrass quality and improved it in some cases. We found that N fertilization rates could be reduced 50% or more without decreasing turfgrass quality when clippings were returned. Overall, returning grass clippings improved growth and quality of turfgrass while reducing N fertilization needs."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kopp, K. L., and K. Guillard. 2000. Clipping management effects on turfgrass growth, N utilization, and quality responses. Annu. Meet. Abstr. p. 161.
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